The event and championship headliner takes place April 5 at Singapore Indoor Stadium in Kallang, Singapore.

No other fights have yet been announced for the event, which is expected to stream via online pay-per-view in North America.

Boku, a 12-year vet who’s competed for organizations such as Shooto and DREAM, is on a 7-2 run since mid-2009. In his ONE FC debut back in October, the Japanese-born South Korean scored a third-round TKO victory over Zorobabel Moreira to claim the inaugural lightweight title. Boku was on a badly damaged left leg before he ended the fight with an overhand right.

On the same card, Aoki scored a quick and easy triangle-choke submission of Arnaud Lepont. It marked Aoki’s promotional debut and helped ease the sting of a Bellator loss to Eddie Alvarez in his previous bout. Most recently, the former Shooto and DREAM champ scored a submission victory (due to strikes) over Antonio McKee at DREAM.18. It marked his ninth win in his past 10 fights.

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In this week’s Trading Shots, Danny Downes and Ben Fowlkes look at Ronda Rousey’s 34-second victory over Bethe Correia at UFC 190 and try to put it into terms that capture the moment without getting swept away by it.

A total of 26 fighters got their chance to shine on Saturday as part of UFC 190 at Rio de Janeiro’s HSBC Arena. Now that UFC 190 is in the books, it’s time to commence MMAjunkie’s “Three Stars” ceremony.

The man known for cranking submissions to the point of injury added eye-gouging to his repertoire. But is the controversy of Rousimar Palhares too essential to his bizarre, awful appeal for his employers to take any meaningful action against him?